Bug report #14846
Updated by Giovanni Manghi over 6 years ago
I see this bugs report #8456, but I think that the issues are different.
The issues that I have noticed are:
# Union returns records without any geometries and they are repeated more times. I suppose that they should be linked to the new geometries derived from the union output;
# some records without geometry should have geometries, because the records have values that derive from the union of the two input tables records;
# if you interrogate geometries, whit "identify" tool, in some cases it returns two results, but only one is linked to a geometry. You can find the relative record in the table, but if you select it in the table no geometry is selected;
The same Union performed with GRASS (v.overlay in Processing tools) is correct.
In attached the input file(circoscrizioni84 e quartieri84)and the fTools and GRASS results (circ84Quartieri84 / (circ84Quartieri84_grass).
The issues that I have noticed are:
# Union returns records without any geometries and they are repeated more times. I suppose that they should be linked to the new geometries derived from the union output;
# some records without geometry should have geometries, because the records have values that derive from the union of the two input tables records;
# if you interrogate geometries, whit "identify" tool, in some cases it returns two results, but only one is linked to a geometry. You can find the relative record in the table, but if you select it in the table no geometry is selected;
The same Union performed with GRASS (v.overlay in Processing tools) is correct.
In attached the input file(circoscrizioni84 e quartieri84)and the fTools and GRASS results (circ84Quartieri84 / (circ84Quartieri84_grass).